2 inch Cast Iron Soil Service Weight 1/8 Bend Hub x Soil

2" Cast Iron Service Weight 1/8 Bend – Hub x Hub DWV Fitting for Soil and Waste Systems

The 2" Cast Iron Service Weight 1/8 Bend is a hub x hub drainage fitting designed for use in sanitary and storm soil waste systems. Manufactured in accordance with ASTM A74 and cast to precise tolerances, this 45-degree elbow supports directional changes in horizontal and vertical DWV (Drain, Waste, and Vent) piping networks.

Constructed from durable gray cast iron, the fitting offers high compressive strength, dimensional stability, and long service life under gravity drainage conditions. The service weight classification indicates it is suitable for above- and below-grade applications where robust mechanical performance and acoustic suppression are required.

Technical Specifications

• Material: Gray Cast Iron (per ASTM A74)
• Size: 2" nominal pipe diameter
• Connection: Hub x Hub (service weight)
• Bend Angle: 1/8 bend (45 degrees)
• System Type: Non-pressurized DWV systems
• Jointing Method: Caulked or compression gasket per CISPI 310

Installation Considerations

Use compatible gaskets or lead and oakum sealing methods as specified by project requirements and local plumbing code. Ensure proper alignment, joint preparation, and support spacing in accordance with CISPI and ASTM guidelines. This fitting must be installed by trained personnel familiar with cast iron DWV systems and safety protocols related to handling heavy fittings.

Typical Applications

Commonly used in commercial and residential DWV systems for soil lines, waste stacks, and vent piping. The 1/8 bend provides smooth directional changes to maintain hydraulic flow and minimize turbulence in horizontal-to-horizontal or vertical-to-horizontal transitions.

Performance Characteristics

Cast iron offers excellent fire resistance, sound attenuation, and durability in corrosive and high-temperature drainage environments. Service weight fittings provide mechanical reliability under high-traffic or buried conditions where structural loading is a concern.